Bangladesh, Sept. 29 -- The Anglo-Australian multinational company Rio Tinto the largest iron ore mining company in the world demolished two 46,000-year-old Aboriginal rock shelters in May. What is particularly disturbing about this event is that Rio Tinto was apparently acting entirely within the law, which is to say that this kind of tragic and wanton destruction will continue to happen unless stricter regulations are enacted. The sites were located on the ancestral lands of the Puutu Kunti Kurrama and Pinikura, or PKKP, people in the Pilbara region of Western Australia. Anthropological studies commissioned by Rio Tinto itself confirmed that the caves were of "the highest archaeological significance," containing an "enormous museum of i...